I am little confused here maybe you guys can help me out. My dog is turning three in July and he is intact. I had my brother's fixed shelter pit female over yesterday for a play date. Now she was fixed a year ago or so. Bernie wanted to ride her like a pony and kept licking her genital region, at one point he was even tasting the area where she urinated. I am puzzled, I thought that when a female was fixed her chemical/hormone balance changes and she would no longer be desirable to an intact male? Now I know humping is also associated with dominance but I could call him off from bothering her and he would lay on the ground and leave her alone. He didn't growl and didn't posture in an aggressive manner, he was stalking her the whole time and when he cornered her he tried to hump her.. I def corrected that very quickly because I don't want her to be the one to do it. Since I know a lot of have owned dogs for a while and even bred them. I would love to hear the explanation of this behavior.